Annotation device, annotation method, and learning device

Abstract

An annotation device includes: a signal acquiring unit that acquires a signal indicating a detection result for a mobile object from a sensor; a display control unit that displays the signal acquired on a PPI display device as a signal in time series; a reception unit that receives an operation by a user on the signal displayed on the PPI display device and including an input indicating that the signal is a false signal or a true signal; a storage control unit that stores the operation in a storage unit as an operation log; and a calculation unit that calculates a probability that a signal indicating a false signal is a false signal or a probability that a signal indicating a true signal is a true signal as a continuous value changing depending on a content of an operation specified with the operation log.

1 . An annotation device comprising:
 a processor; and   a memory storing a program, upon executed by the processor, to perform a process:   to acquire a signal indicating a detection result for a mobile object moving with lapse of time from a sensor to detect the mobile object;   to display the signal acquired on a plan position indicator (PPI) display device as a signal whose display state changes in time series;   to receive an operation performed by a user on the signal displayed on the PPI display device and including an input indicating that the signal is a false signal or an input indicating that the signal is a true signal;   to store the operation received in a storage as an operation log; and   to calculate a probability that a signal for which the input indicating a false signal is received is a false signal or a probability that a signal for which the input indicating a true signal is received is a true signal as a continuous value changing depending on a content of an operation specified with the operation log stored in the storage,   
       wherein
 the process acquires a plurality of the signals, 
 the process displays each of the plurality of signals acquired on the PPI display device as a signal whose display state changes in time series, and 
 
       wherein
 the process 
 specifies, with the operation log, a time when the process displays the signal on the PPI display device and a time when the process receives an input indicating that the signal is a false signal or an input indicating that the signal is a true signal, 
 calculates a probability that the signal for which the input indicating a false signal is received is a false signal or a probability that the signal for which the input indicating a true signal is received is a true signal as a continuous value changing depending on a time from the time when the signal is displayed on the PPI display device to the time when the process receives the input indicating that the signal is a false signal or the input indicating that the signal is a true signal, 
 corrects a time when the input indicating that the signal is a false signal or the input indicating that the signal is a true signal is received on a basis of at least one of the number of signals displayed on the PPI display device by the process and a density of the signals in a predetermined range on a display screen of the PPI display device, and 
 calculates a probability that the signal for which the input indicating a false signal is received is a false signal or a probability that the signal for which the input indicating a true signal is received is a true signal as a continuous value changing depending on a time from a time when the signal is displayed on the PPI display device to the corrected time. 
 
     
     
         2 . An annotation device comprising:
 a processor; and   a memory storing a program, upon executed by the processor, to perform a process:   to acquire a signal indicating a detection result for a mobile object moving with lapse of time from a sensor to detect the mobile object;   to display the signal acquired on a plan position indicator (PPI) display device as a signal whose display state changes in time series;   to receive an operation performed by a user on the signal displayed on the PPI display device and including an input indicating that the signal is a false signal or an input indicating that the signal is a true signal;   to store the operation received in a storage as an operation log; and   to calculate a probability that a signal for which the input indicating a false signal is received is a false signal or a probability that a signal for which the input indicating a true signal is received is a true signal as a continuous value changing depending on a content of an operation specified with the operation log stored in the storage,   
       wherein
 the process acquires a plurality of the signals, 
 the process displays each of the plurality of signals acquired on the PPI display device as a signal whose display state changes in time series, 
 the process 
 receives an operation performed by the user on a first signal among the plurality of signals displayed on the PPI display device and including an input indicating that the first signal is a false signal or an input indicating that the first signal is a true signal, and 
 
       wherein
 the process 
 specifies, with the operation log, a time when the process displays the signal on the PPI display device and a time when the process receives an input indicating that the signal is a false signal or an input indicating that the signal is a true signal, 
 calculates a probability that the signal for which the input indicating a false signal is received is a false signal or a probability that the signal for which the input indicating a true signal is received is a true signal as a continuous value changing depending on a time from the time when the signal is displayed on the PPI display device to the time when the process receives the input indicating that the signal is a false signal or the input indicating that the signal is a true signal, 
 corrects a time when the input indicating that the first signal is a false signal or the input indicating that the first signal is a true signal is received on a basis of a distance between the first signal for which the input indicating a false signal is received and the second signal for which the input indicating a false signal was received in the past, or a distance between the first signal for which the input indicating a true signal is received and the second signal for which the input indicating a true signal was received in the past, and 
 calculates a probability that the first signal for which the input indicating a false signal is received is a false signal or a probability that the first signal for which the input indicating a true signal is received is a true signal as a continuous value changing depending on a time from a time when the first signal is displayed on the PPI display device to the corrected time. 
 
     
     
         3 . An annotation device comprising:
 a processor; and   a memory storing a program, upon executed by the processor, to perform a process:   to acquire a signal indicating a detection result for a mobile object moving with lapse of time from a sensor to detect the mobile object;   to display the signal acquired on a plan position indicator (PPI) display device as a signal whose display state changes in time series;   to receive an operation performed by a user on the signal displayed on the PPI display device and including an input indicating that the signal is a false signal or an input indicating that the signal is a true signal;   to store the operation received in a storage as an operation log; and   to calculate a probability that a signal for which the input indicating a false signal is received is a false signal or a probability that a signal for which the input indicating a true signal is received is a true signal as a continuous value changing depending on a content of an operation specified with the operation log stored in the storage,   
       wherein
 the process acquires a plurality of the signals, 
 the process displays each of the plurality of signals acquired on the PPI display device as a signal whose display state changes in time series, and 
 
       wherein
 the process 
 specifies, with the operation log, a time when the process displays the signal on the PPI display device and a time when the process receives an input indicating that the signal is a false signal or an input indicating that the signal is a true signal, 
 calculates a probability that the signal for which the input indicating a false signal is received is a false signal or a probability that the signal for which the input indicating a true signal is received is a true signal as a continuous value changing depending on a time from the time when the signal is displayed on the PPI display device to the time when the process receives the input indicating that the signal is a false signal or the input indicating that the signal is a true signal, 
 corrects a time when the input indicating that the signal is a false signal or the input indicating that the signal is a true signal is received on a basis of at least one of whether the signal displayed on the PPI display device is displayed in a superimposed manner and how many signals are displayed in a superimposed manner in a case where the signal is displayed in a superimposed manner, and 
 calculates a probability that the signal for which the input indicating a false signal is received is a false signal or a probability that the signal for which the input indicating a true signal is received is a true signal as a continuous value changing depending on a time from a time when the signal is displayed on the PPI display device to the corrected time. 
 
     
     
         4 . The annotation device according to  claim 1 , wherein
 the process acquires a plurality of the signals,   the process stores related information related to each of the plurality of signals acquired in the storage,   the process displays each of the plurality of signals acquired on the PPI display device as a signal whose display state changes in time series,   the process receives a selection operation performed by the user on any signal among the plurality of signals displayed on the PPI display device, and   the process extracts related information related to the signal whose selection operation is received from the storage and displays the extracted related information on the PPI display device.   
     
     
         5 . The annotation device according to  claim 4 , wherein
 the process   receives the selection operation performed by the user on the first signal among the plurality of signals displayed on the PPI display device and an operation including an input indicating that the first signal is a false signal or an input indicating that the first signal is a true signal, and   the process   specifies, with the operation log, a time when the selection operation on the first signal is received and a time when the input indicating that the first signal is a false signal or the input indicating that the first signal is a true signal is received, and   calculates a probability that the first signal is a false signal or a probability that the first signal is a true signal as a continuous value changing depending on a time from the time when the selection operation is received to the time when the input indicating that the first signal is a false signal or the input indicating that the first signal is a true signal is received.   
     
     
         6 . The annotation device according to  claim 5 , wherein
 the process   specifies whether or not the process has received a selection operation of a signal other than the first signal after receiving the selection operation of the first signal with the operation log, and has further received the selection operation of the first signal,   corrects a time when the selection operation of the first signal was finally received in a case where the process has received a selection operation of a signal other than the first signal after receiving the selection operation of the first signal, and has further received the selection operation of the first signal, and   calculates a probability that the first signal is a false signal or a probability that the first signal is a true signal as a continuous value changing depending on a time from the corrected time to a time when the input indicating that the first signal is a false signal or the input indicating that the first signal is a true signal is received.   
     
     
         7 . An annotation method comprising:
 acquiring a signal indicating a detection result for a mobile object moving with lapse of time from a sensor to detect the mobile object;   displaying the signal acquired on a plan position indicator (PPI) display device as a signal whose display state changes in time series;   receiving an operation performed by a user on the signal displayed on the PPI display device and including an input indicating that the signal is a false signal or an input indicating that the signal is a true signal;   storing the operation received in a storage as an operation log; and   calculating, a probability that a signal for which the input indicating a false signal is received is a false signal or a probability that a signal for which the input indicating a true signal is received is a true signal as a continuous value changing depending on a content of an operation specified with the operation log stored in the storage,   
       wherein
 the method acquires a plurality of the signals, 
 the method displays each of the plurality of signals acquired on the PPI display device as a signal whose display state changes in time series, and 
 
       wherein
 the method 
 specifies, with the operation log, a time when the method displays the signal on the PPI display device and a time when the method receives an input indicating that the signal is a false signal or an input indicating that the signal is a true signal, 
 calculates a probability that the signal for which the input indicating a false signal is received is a false signal or a probability that the signal for which the input indicating a true signal is received is a true signal as a continuous value changing depending on a time from the time when the signal is displayed on the PPI display device to the time when the method receives the input indicating that the signal is a false signal or the input indicating that the signal is a true signal, 
 corrects a time when the input indicating that the signal is a false signal or the input indicating that the signal is a true signal is received on a basis of at least one of the number of signals displayed on the PPI display device and a density of the signals in a predetermined range on a display screen of the PPI display device, and 
 calculates a probability that the signal for which the input indicating a false signal is received is a false signal or a probability that the signal for which the input indicating a true signal is received is a true signal as a continuous value changing depending on a time from a time when the signal is displayed on the PPI display device to the corrected time. 
 
     
     
         8 . A learning device comprising
 the annotation device according to  claim 1  and a learner, wherein   the learner   generates a machine learning model to receive, as an input, data indicating the signal acquired and to output a probability that a signal indicated by the input data is a false signal or a probability that the signal indicated by the input data is a true signal as a continuous value changing depending on a content of an operation specified with the operation log stored in the storage   on a basis of   data indicating a signal acquired, and   a probability that the signal for which the input indicating a false signal is received is a false signal or a probability that the signal for which the input indicating a true signal is received is a true signal, calculated.